<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>新龙科技</title>
</head>
<body>

对象的访问
{{user.username}}---{{user.email}} <br>
{{user['username']}}---{{user['email']}}<br>
{{person.username}}---{{person.email}}<br>
{{person.username|length}}---{{person.email}}<br>
{{person.time}}---{{person.email}}<br>


<script>
   let dd =  new Date()
   console.log(dd.getTime()); 
</script>

</body>
</html>